Stroll via Piccadilly Circus like Harry, Ron, and Hermione did although fleeing Death Eaters in Deathly Hallows

https://www.hometalk.com/member/227660221/myra1543536

Stroll because of Piccadilly Circus like Harry, Ron, and Hermione did whilst fleeing Death Eaters in Deathly Hallows, mixing magic with metropolis lighting.